Câu hỏi:

This is especially worrying when there are about 3,000 plants with values as medicines against cancer, AIDS, heart disease and many other sicknesses.

A. well

B. suddenly

C. particularly

D. highly

Câu 1:

Choose the word whose main stress is placed differently from the others in each group

A.  conserve

B.  disease

C. wildlife

D.  expand

Câu 2:

Choose the word whose main stress is placed differently from the others in each group

A. illness

B. slowly

C. spoken

D. police

Câu 3:

Choose the word whose main stress is placed differently from the others in each group

A. damage

B. pollute

C. defense

D. erode

Câu 4:

If you don't have anything _______ to say, I'd rather you kept quiet.

A. construct

B. constructors

C. constructive

D. construction

Câu 5:

He says he'll tell the authorities but it's just an empty ______.

A.  threat

B.  threaten

C.  threatening

D.  threateningly

Câu 6:

The loss of much forest is destroying Earth’s plant and animal variety.

A. consuming

B. demolishing

C. erasing

D. removing